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http://dx.doi.org/10.7840/KICS.2011.36B.6.689

A Study on The Modulation Method for Low Power Communication in Underwater Sensor Network  

Jang, Chul-Hee (한국해양대학교 전파공학과 DSP 연구실)
Han, Jeong-Woo (한국해양대학교 전파공학과 DSP 연구실)
Kim, Ki-Man (한국해양대학교 전파공학과 DSP 연구실)
Lee, Seong-Ro (목포대학교 정보전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.6B, 2011 , pp. 689-696 More about this Journal
Abstract
In this paper, we propose the result of PSSK(Phase Silence Shift Keying) modulation scheme that is mixed PSK(Phase Shift Keying) modulation and PPM(Pulse Position Modulation) method. The performance of underwater communication systems are influenced underwater channel characteristics. In particular, delay spread can make ISI(Inter Symbol Interference) because of reverberation and multi path. It degrade the performance of the communication system. Also underwater sensor networks consider about power efficient due to the particularities of their operating environment. PSSK modulation method transmit two orthogonal symbol and using silence period in a period so it can reduce the power. Increasing the distance of between modulation symbols, to enhance the performance of BER(Bit Error Rate) as well as to improve power efficient. The result of sea trial, QPSK modulation BER is $3.19{\times}10^{-1}$ and PSSK modulation BER is $2.89{\times}10^{-1}$.
Keywords
Underwater Communication; Multi-Path; ISI; PSSK;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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